microHAM CW KEYER firmware `v2.0`

microHAM · Released Jul 13, 2005 · First seen Sep 9, 2026

v2.0 is not the latest firmware for the microHAM CW KEYER: the current version is v5.4 (March 5, 2008). Go to v5.4

In short — summary by updatemystuff.com

Adds CW auto-numbering with ENTER key, type-ahead buffer, optional QWERTZ layout, and reassigns numpad keys for WPM control

Auto-numbering in CW mode triggered by ENTER with optional 5NN report and auto-increment
Type-ahead buffer with 16-character capacity for FSK and CW modes
Numpad keys remapped for WPM speed and auto-numbering control; F10 operates as foot switch

Written from microHAM's release notes, which are printed in full below.

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Wide optimalization of code.
new features:
Auto numbering in CW mode (ENTER invoke sending of number optionally with report 5NN, number is automatically incremented, can be changed from keyboard)
Type ahead with buffer of 16 characters (optional in both FSK and CW mode)
Optional QWERTZ keyboard layout
Keys ENTER,+,- on numpad have two alternative functions (WPM speed control and auto numbering control) that are toggled by numpad key /. Its old function (side tone control) is obsolete.
F10 operate as foot switch

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